# Drill.ai vs Study Coin (4174d1)

The clearest difference is in-app purchases: Study Coin (4174d1) at none against Drill.ai's 1. Study Coin (4174d1) also leads on ads (none vs shown). Drill.ai's advantage is update cadence (every 2 days vs fortnightly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Drill.ai sells 1 in-app purchase, starting at $9.99 per month. Study Coin (4174d1) asks for nothing beyond the download.

Drill.ai ships an update every 2 days, Study Coin (4174d1) fortnightly. The most recent releases landed on October 10, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Drill.ai | Study Coin (4174d1) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Fortnightly |
| Size | 48 MB | 110 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yuta Kobayashi](https://appshunter.io/developer/1858966177) | [Shotaro Hamada](https://appshunter.io/developer/6790985477) |

## What reviewers say

### Drill.ai

[App page](https://appshunter.io/ios/app/drillai/id6756187061)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Proプラン（月額） | $9.99 | per month |


### Study Coin (4174d1)

[App page](https://appshunter.io/ios/app/study-coin-4174d1/id6790985475)

**In-app purchases:** none


## Frequently asked questions

### Is Drill.ai free?

Drill.ai is free to download, with in-app purchases available.

### Is Study Coin (4174d1) free?

Study Coin (4174d1) is free to download, with no in-app purchases.

### Do Drill.ai or Study Coin (4174d1) have ads?

Drill.ai shows ads; Study Coin (4174d1) does not.

### Which is updated more often, Drill.ai or Study Coin (4174d1)?

Drill.ai ships an update every 2 days, and Study Coin (4174d1) fortnightly. Most recently, Drill.ai was updated on October 10, 2026 and Study Coin (4174d1) on October 21, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*